S3C44B0X

Manufacturer Part NumberS3C44B0X
DescriptionBGA
ManufacturerSamsung
S3C44B0X datasheets
 


Specifications of S3C44B0X

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S3C2400 RISC MICROPROCESSOR
MMC COMMAND RELATED REGISTER (MMCRR)
Register
MMCRR
0x15A00004(Li/B, Li/HW, Li/W, Bi/W)
0x15A00006(Bi/HW)
0x15A00007(Bi/B)
MMCRR
Bit
Response Type
[7:6]
Determines what response type MMC command is.
(RTYP)
00 = no response,
10 = short & busy type (5 byte),
Multi Block Mode
[5]
Determines whether MMC command type is MULTI or not.
(MULTI)
0 = normal mode,
Sequential Mode
[4]
Determines whether MMC command type is SEQ or not.
(SEQ)
0 = normal mode,
Data Stop
[3]
Determines whether MMC command function is STOP or not.
Command
0 = not stop command,
(STOP)
Data Read
[2]
Determines whether MMC command function is READ or not.
Command
0 = not read command,
(RCMD)
Data Write
[1]
Determines whether MMC command function is WRITE or not.
Command
0 = not write command,
(WCMD)
Command Start
[0]
Determines whether MMC command operation starts or not.
(CMST)
0 = command ready,
NOTE:
When you are going to operate STOP command, confirm transmit(or receive) all the data to send (or get). And
then, you can execute STOP command. But, in the case of sequential(SEQ) write(WCMD) command, you should
but also watch Tx FIFO's count number whether zero or not.
Address
R/W
R/W
Description
1 = multi mode
1 = sequential mode
1 = stop command
1 = read command
1 = write command
1 = command start
MMC INTERFACE
Description
Reset Value
MMC Command Related
Register
Initial State
01 = short type (5 byte)
11 = long type (16 byte)
0x00
00
0
0
0
0
0
0
19-5